Laser selective focusing utilized for remarkably enhancing the responses of photodetectors

Wenjuan Wang; Shaowei Wang; Wei Lu; Feiliang Chen; Ying Zhang; Xiaolan Sun; Ning Li; Zhifeng Li; Xue Li

Laser selective focusing utilized for remarkably enhancing the responses of photodetectors

Wenjuan Wang^*
, Shaowei Wang
, Wei Lu
, Feiliang Chen
, Ying Zhang
, Xiaolan Sun
, Ning Li
, Zhifeng Li
, Xue Li

^*Corresponding author for this work

CAS - Shanghai Institute of Technical Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Laser selective focusing structure has been introduced to enhance the response of the photodectectors remarkably. By using the amplitude Fresnel zone plate lens (FZPL) working in transmissive mode, high energy collection of laser light and high suppression of the other background light were obtained. A 36×gain and a 4×gain in responses were obtained for a mesa InGaAs/InP p-i-n photodetector and a planar InGaAs/InP avalanche photodetector(APD) integrated with FZPLs respectively, compared with the responses without FZPLs, when illuminated by the laser light. While illuminated by the Tungsten-halogen lamp, 30% deductions in responses were obtained with FZPLs compared with the responses without FZPLs. Strong enhancement of laser light absorption and obvious suppression of the light from the Tungsten-halogen lamp were obtained.

Original language	English
Pages (from-to)	1416-1420
Number of pages	5
Journal	Infrared and Laser Engineering
Volume	43
Issue number	5
State	Published - May 2014
Externally published	Yes

Keywords

Fresnel zone plate
Laser selective focusing
Photodetectors

Cite this

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title = "Laser selective focusing utilized for remarkably enhancing the responses of photodetectors",

abstract = "Laser selective focusing structure has been introduced to enhance the response of the photodectectors remarkably. By using the amplitude Fresnel zone plate lens (FZPL) working in transmissive mode, high energy collection of laser light and high suppression of the other background light were obtained. A 36×gain and a 4×gain in responses were obtained for a mesa InGaAs/InP p-i-n photodetector and a planar InGaAs/InP avalanche photodetector(APD) integrated with FZPLs respectively, compared with the responses without FZPLs, when illuminated by the laser light. While illuminated by the Tungsten-halogen lamp, 30\% deductions in responses were obtained with FZPLs compared with the responses without FZPLs. Strong enhancement of laser light absorption and obvious suppression of the light from the Tungsten-halogen lamp were obtained.",

keywords = "Fresnel zone plate, Laser selective focusing, Photodetectors",

author = "Wenjuan Wang and Shaowei Wang and Wei Lu and Feiliang Chen and Ying Zhang and Xiaolan Sun and Ning Li and Zhifeng Li and Xue Li",

year = "2014",

month = may,

language = "英语",

volume = "43",

pages = "1416--1420",

journal = "Infrared and Laser Engineering",

issn = "1007-2276",

publisher = "Science Press ",

number = "5",

}

TY - JOUR

T1 - Laser selective focusing utilized for remarkably enhancing the responses of photodetectors

AU - Wang, Wenjuan

AU - Wang, Shaowei

AU - Lu, Wei

AU - Chen, Feiliang

AU - Zhang, Ying

AU - Sun, Xiaolan

AU - Li, Ning

AU - Li, Zhifeng

AU - Li, Xue

PY - 2014/5

Y1 - 2014/5

N2 - Laser selective focusing structure has been introduced to enhance the response of the photodectectors remarkably. By using the amplitude Fresnel zone plate lens (FZPL) working in transmissive mode, high energy collection of laser light and high suppression of the other background light were obtained. A 36×gain and a 4×gain in responses were obtained for a mesa InGaAs/InP p-i-n photodetector and a planar InGaAs/InP avalanche photodetector(APD) integrated with FZPLs respectively, compared with the responses without FZPLs, when illuminated by the laser light. While illuminated by the Tungsten-halogen lamp, 30% deductions in responses were obtained with FZPLs compared with the responses without FZPLs. Strong enhancement of laser light absorption and obvious suppression of the light from the Tungsten-halogen lamp were obtained.

AB - Laser selective focusing structure has been introduced to enhance the response of the photodectectors remarkably. By using the amplitude Fresnel zone plate lens (FZPL) working in transmissive mode, high energy collection of laser light and high suppression of the other background light were obtained. A 36×gain and a 4×gain in responses were obtained for a mesa InGaAs/InP p-i-n photodetector and a planar InGaAs/InP avalanche photodetector(APD) integrated with FZPLs respectively, compared with the responses without FZPLs, when illuminated by the laser light. While illuminated by the Tungsten-halogen lamp, 30% deductions in responses were obtained with FZPLs compared with the responses without FZPLs. Strong enhancement of laser light absorption and obvious suppression of the light from the Tungsten-halogen lamp were obtained.

KW - Fresnel zone plate

KW - Laser selective focusing

KW - Photodetectors

UR - https://www.scopus.com/pages/publications/84902816001

M3 - 文章

AN - SCOPUS:84902816001

SN - 1007-2276

VL - 43

SP - 1416

EP - 1420

JO - Infrared and Laser Engineering

JF - Infrared and Laser Engineering

IS - 5

ER -

Laser selective focusing utilized for remarkably enhancing the responses of photodetectors

Abstract

Keywords

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